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Finding the Fourth Proportional to 251,383.32, 346,915.80 and 136,669.68

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Solution

The fourth proportional to 251,383.32, 346,915.80 and 136,669.68 is: 188,607.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,383.32 : 346,915.80 = 136,669.68 : x
  2. Step 2: Convert to fraction form
    251,383.32/346,915.80 = 136,669.68/x
  3. Step 3: Cross multiply
    251,383.32x = 346,915.80 × 136,669.68
  4. Step 4: Simplify right side
    251,383.32x = 47,412,871,372.94
  5. Step 5: Solve for x
    x = 47,412,871,372.94/251,383.32
  6. Step 6: Final answer
    x = 188,607.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.